London is going to have its first 360 degree pool, but people are confused

We all love London’s skyline. The city’s charm accentuates with the view of London Bridge, the Tower of London, London Eye, St Paul’s Cathedral and glistening Thames river seen from the top but not all are lucky enough to dine and view from the windows of the Shard. Worry not, a revolutionary pool is coming to London next year, which will allow you to float on top of a 55-story building. The world’s first 360-degree rooftop infinity pool will be located on top of a new five-star hotel called the Infinity London, announced Compass Pools, the company which is designing the pool. According to the company’s website, the pool will by 660-liters (around 174 gallons) and will feature a see-through bottom floor, which will allow hotel visitors to see the people swimming and the sky above. However, among all the excitement and frenzy people couldn’t understand how swimmers would enter the pool. Well, the designer, Alex Kemsley, is here to answer that. Essentially, it's a tube in a tube, he told in an interview. An outer tube rises up from the floor and fills with water from the pool, which is being displaced. The water that has filled the tube then drains out and goes back into the balance tank — every commercial swimming pool has a balance tank that ensures the water level stays the same regardless of how many people are getting in and out of the pool, displacing water as they go. There's then a dry, inner tube, which contains the spiral staircase and is entered via a door on the floor below. You can't open the door until the outside tube has drained. It would take about 30 seconds for the whole process to take place, from the outer tube rising to a person getting into the pool. At the top, the outer tube sticks out above water level by about 30cm, just so that the water doesn't then splash back down the tube. The top step of the spiral staircase is roughly water level so once you're at the top, you just have to hop over the edge of the tube and into the pool — there'll also be an option to climb down some indentations in the outer tube if you prefer to enter the pool more gently. The staircase has also been designed so that the top step is nearest the centre of the pool so there's no possibility of falling off the edge of the building. When it's time for the staircase to go back down, the inner tube containing the staircase goes down first, the door shuts, the outer tube then fills with water, and the tube retracts, placing water back in the pool as it does. Wow, we’re not sure about the swimmers but the building designers for sure would be looking forward to this innovation.